This root form (lemma) is used in 2 different forms in the NT: ἔκφοβοι (NMP), ἔκφοβός (NMS).
It is glossed in 1 way: ‘terrified’.
OET MARK 9:6 Greek word=ἔκφοβοι (ekfoboi) Morphology=NMP English gloss=‘terrified’ SR GNT MARK 9:6 word 11
OET HEB 12:21 Greek word=ἔκφοβός (ekfobos) Morphology=NMS English gloss=‘terrified’ SR GNT HEB 12:21 word 10